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{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
{\colortbl;\red255\green255\blue255;}
\margl1440\margr1440\vieww10800\viewh8400\viewkind0
\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural

\f0\fs24 \cf0 rails g model Comment body:text user:references\
\
#class Comment < ActiveRecord::Base\
  belongs_to :user\
  belongs_to :commentable, polymorphic: true\
  attr_accessible :body\
end\
\
add to other classes\
#has_many :comments, as: :commentable}